RE: [TCML] Phase

["Lau, Gary" <Gary.Lau@xxxxxx>]

I've never viewed adjusting the gap spacing as a tuning or tweaking parameter, believing that it should simply be made as narrow as possible without risking a crash.  If it is too wide or marginally too wide, the gap may misfire, especially if it is run at less than full power. Assuming there is no danger of a crash, why shouldn't the gap be made as narrow as possible?  Yes, the gap will fire before the actual mechanical alignment, but this of no consequence.

For synchronous gaps employing LTR caps, the actual optimal firing point is not at the peak capacitor voltage (which would seem intuitive), but rather sometime later.  The explanation for this is lengthy (inductive kick effect), but Richie Burnett does an excellent job on his web site page http://www.richieburnett.co.uk/indkick.html#kick.  It's just one of those things that one needs to try and scope for yourself.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Chris Swinson
> Sent: Wednesday, November 28, 2007 12:02 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Phase
>
> Hi Tony,
>
> Keep the motor off, but keep the electrodes aligned, see if the tank volts
> gets high enough to jump the gap. If it does then make the gap wider and
> keep going. Then you need to physically move the sync motor while it is
> running. The spark gap should only fire within a few degrees of manual
> adjustment. mark the points from left to right where the spark gap stops
> conducting then you have your centre point which will be the top of the AC
> cycle. You can then adjust your gaps wider if needs be once you have worked
> out your gap fire.
>
> If your gap does not fire while the motor is running then just close them
> down a fraction and try again..
>
> Hope this helps..
>
> Chris
>
>
>
> ----- Original Message -----
> From: <penny831@xxxxxxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Wednesday, November 28, 2007 4:18 PM
> Subject: [TCML] Phase
>
>
> > Good morning all,
> >  I was wondering if anyone has any advise on presetting the phase on a
> > SRSG? I'd like to set it right in the begining for maximum bang for my
> > buck. I read about using a flurescent light but I could see anything when
> > I tied that besides a spinning electrode. Your advise is appreciated.
> >
> > Tony

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